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Trenton city, NJ

ZIP Code 08628 — Trenton city, NJ Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Upper Middle ClassLow Snow AreaRemote Work Hub

Map, Quick Facts & Location

Quick Facts

Local time
Population
9,479
Median Income
$101,075
+34% vs US avg
Home Value
$358,100
+3% vs US avg
Median Rent
$1,548
+33% vs US avg
Median Age
45.0 yrs
+16% vs US avg
Area Code
Congress
Top Ancestry
IrishItalianGerman
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Location
Coordinates
40.2644, -74.8270
Elevation
184 ft
Land Area
7.0 sq mi
Water Area
0.3 sq mi (4% water)

At a glance

Population
9,479
Density
N/A
Median income
$101,075
+34% vs US avg
Home value
$358,100
+3% vs US avg
Median rent
$1,548
+33% vs US avg
Timezone

Overview of ZIP Code 08628

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What to know about ZIP 08628

ZIP code 08628 covers Trenton, NJ in Mercer County with a population of about 9,479.

At a glance, the area shows median age of 45.0 versus a U.S. median of about 38.9.

It sits in telephone area codes 609, 640; U.S. House district NJ-12; the PHILADELPHIA media market.

Income and economy in Trenton, NJ

Median household income in ZIP 08628 is about $101,075 — about 34% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 8.4%; unemployment rate near 4.5%; 57.4% of adults with a bachelor’s degree or higher (about 23.7 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Education, and Professional services; about 17.9% of workers reporting work-from-home (about 2.7 points above the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 08628

Median home value is about $358,100 — about 3% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,548 (about 33% above the U.S. median rent ($1,163)), and owner-occupancy near 62.8% (about 2.6 points below the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 08628 in Trenton, NJ, a household would need roughly $99,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $2,300. That is roughly in line with the local median household income ($101,075). Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for Trenton city, NJ as Relatively High (composite score 95.4), which is among the highest nationally. The strongest component scores on US5 are flood (97.2) and hurricane (94.6). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Trenton city, NJ show little to no average snow and around 45.6 inches of annual precipitation.

IRS migration statistics show a net inflow of about 610 for ZIP 08628 (Trenton city, NJ) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.

Nearby (from this ZIP)

Airport TTN (1.1 miles (1.8 km)) · The College of New Jersey (2.6 miles (4.1 km)) · Washington-Rochambeau Revolutionary Route National Historic Trail (11.8 miles (18.9 km)) · VA: Trenton Vet Center (1.9 miles (3.1 km))

Full lists and map pins are in the Infrastructure section below.